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ctrglobsust.bsky.social
Center for Global Sustainability
@ctrglobsust.bsky.social
1.2K followers 47 following 420 posts
Research center at the University of Maryland School of Public Policy.
Collaboration & analytics from local to global. Research for climate action, #AmericaIsAllIn, energy innovation, climate finance & resilience, & more.
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ctrglobsust.bsky.social
How can the world’s major emitting countries ramp up ambition in their 2035 #NDCs?
Check out @CtrGlobSust's new website providing in-depth analyses of plausible, high-ambition pathways for 2035: country-ambition.cgs...
An aerial view of a hydropower dam on a cloudy day with a white box displaying text. The text reads, "Visit Center for Global Sustainability's new interactive website to explore high ambition country pathways with: Country specific analyses; Data-driven empirical analysis; Consistent, robust, and integrated approach; Informed by international research collaboration".
November 26, 2025 at 4:00 PM
ctrglobsust.bsky.social
This month, CGS researchers have supported Maryland's climate policies at the Maryland Clean Energy Conference, Greater Baltimore Climate Summit, and the Maryland Climate Forward Forum.

Learn more about CGS's Maryland research: cgs.umd.edu/research...
A woman in formal attire poses in front of a photo backdrop that reads, "Having a Ball" with inflatable spheres that read, "Balancing supply, demand, & sustainability". Two people people in formal attire pose in front of a banner that says, "Greater Baltimore Climate Summit".
November 25, 2025 at 6:00 PM
ctrglobsust.bsky.social
CGS's recent report examines how new climate policies will impact Canada's future climate action, looking at 5 climate policy scenarios to analyze current progress and ways to get on track to reach net-zero by 2050: go.umd.edu/Canada203...
A view of a crystal blue lake surrounded by forests and snow-capped mountains. Text on the left reads, "Achieving a High Ambition Pathway for Canada’s 2035 NDC and 2050 Net-Zero Emissions Targets; The Center for Global Sustainability’s new report explores how new policy priorities, including the Building Canada Act, could affect Canada’s climate future as the deadline for 2035 NDCs approaches. Through analyzing five climate-policy scenarios with varying levels of climate ambition, the report highlights that Canada's current policies will not be enough to put Canada on track to achieve its climate targets, including net-zero by 2050, and that more policy action is needed."
November 24, 2025 at 5:00 PM
ctrglobsust.bsky.social
Just released 📣
A new @ctrglobsust.bsky.social report proposes a novel framework that addresses research gaps by analyzing subnational climate governance potential and identifying ambitious, feasible policy approaches within existing governance systems: go.umd.edu/SubnationalActionFramework
A tall historic building surrounded by modern city infrastructure with text overlay reading, "A Framework for Integrating Subnational Action into Climate Governance Research: Help us amplify a new report from the Center for Global Sustainability analyzing regional and local climate action across the globe, offering a framework for understanding how subnational action can fit into and actively support these efforts."
November 24, 2025 at 2:46 PM
ctrglobsust.bsky.social
@ctrglobsust.bsky.social Assistant Director @jiehonglou.bsky.social joined Brazil's Ministry of Transportation panel where she shared CGS research on how subnational action can help achieve ambitious US climate goals in the transportation sector.
Five people stand in a line while posing in front of a board that says, "Transporte COP30". A woman in a black patterned dress holds a microphone and phone while speaking and gesturing to a large screen behind her.
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
CGS hosted an event with Peking University and @e3g.bsky.social highlighting how subnational climate action can be leveraged to achieve more ambitious national goals. During the event, CGS Associate Dir. @rynacui.bsky.social shared research on expanding non-federal climate leadership in the U.S.
A group of nine people post for a group photo on an elevated platform with the text, "Align for Impact" on a backdrop behind them. A woman in a black skirt and a green stands on a slightly elevated stage while speaking into a microphone. A group of five people sit in a row while a woman in a black dress with white patterns holds a microphone and speaks while motioning with her hand.
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
On Thursday, 11/20, @ctrglobsust.bsky.social, @newclimate.bsky.social, and @nlenvironagency.bsky.social hosted a joint #COP30 side event highlighting how actors at all levels can achieve ambitious #ClimateGoals in line with the #ParisAgreement.
A group of four people pose in front of a backdrop that reads, "COP30 Brasil". A group of four people sit at a long table facing the audience while a man stands on a podium to the left and speaks. A woman in a patterned dress sits at a table and speaks into a hand-held microphone.
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
CGS Associate Director @rynacui.bsky.social presented at CGS's joint event with Solutions For Our Climate, sharing a new joint report with KAIST on how the Republic of Korea can achieve the higher end of its 2035 NDC. Read the report: go.umd.edu/RepublicofKorea2035Ambition
A woman in a blue dress speaks into a hand-held microphone. Four people sit on a panel while a woman in a blue dress speaks into a hand-held microphone. They sit in front of a background that says "Align for Impact".
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
During @americaisallin.com's event at #COP30, CGS Director @natehultman.bsky.social presented CGS's joint report with AIAI showcasing how expanded subnational action and federal re-engagement in 2028 can deliver significant emissions reductions by 2035.
Read the report: go.umd.edu/USPathwaysTo2035
A man stands at a podium and speaks with a microphone in his hand. A man speaks into a microphone in his hand.
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
At several #COP30 events, @natehultman.bsky.social and @jiehonglou.bsky.social shared research from CGS's Country Climate Ambition website on how countries, like Australia, can set and meet ambitious climate targets in their 2035 #NDCs.

Visit the website: country-ambition.cgs.umd.edu
A group of five people pose in front of a screen that reads, "COP30 Brazil Amazonia" with a symbol for Australia in the top right corner. A woman wearing a green patterned shirt stands at a clear podium while speaking and pointing to the screen behind her.
November 21, 2025 at 6:20 PM
ctrglobsust.bsky.social
Today at #COP30: @ctrglobsust.bsky.social, @newclimate.bsky.social, and @nlenvironagency.bsky.social hosted an event showcasing how policymakers and stakeholders at all levels can raise climate ambition to support #ParisAgreement goals.
A woman in a patterned dress sits at a table and speaks into a hand-held microphone. A group of four people sit at a long table facing the audience while a man stands on a podium to the left and speaks. A group of four people pose in front of a backdrop that reads, "COP30 Brasil".
November 20, 2025 at 4:54 PM
ctrglobsust.bsky.social
At the #COP30 NDC Partnership Pavilion, CGS Director @natehultman.bsky.social joined a panel discussion on the role of higher education in advancing green skills development and NDC implementation.
A group of five people sit in a row while a man on the far left in a white shirt and navy pants speaks into a hand-held microphone while gesturing with this other hand. A screen behind the group displays headshots of the panel on a green background. A group of nine people pose for a photo on a slightly elevated stage with a television screen behind them.
November 20, 2025 at 2:26 PM
ctrglobsust.bsky.social
Yesterday at #COP30, CGS Assistant Director @jiehonglou.bsky.social joined a panel hosted by Brazil's Ministry of Transport and shared CGS research on the transportation sector, detailing how subnational action can help achieve ambitious US climate goals, alongside researchers from other countries.
A woman in a black patterned dress holds a microphone and phone while speaking and gesturing to a large screen behind her. Five people stand in a line while posing in front of a board that says, "Transporte COP30". A woman in a black patterned dress holds a microphone and gestures to a large screen with the text, "Less than 1% of total energy consumption by the transportation sector is from electricity" while a large audience listens.
November 20, 2025 at 2:00 PM
ctrglobsust.bsky.social
This morning CGS Director @natehultman.bsky.social shared how cities and states can support the U.S. in reaching ambitious climate goals in line with the #ParisAgreement at @americaisallin.com's event. Watch the recording: www.youtube.com/live...
A group of five people sit in a row. A man in a green shirt and tan pants speaks with a microphone in his hand while motioning with the other.
November 19, 2025 at 10:00 PM
ctrglobsust.bsky.social
Tomorrow, join researchers from @ctrglobsust.bsky.social , @newclimate.bsky.social, and @nlenvironagency.bsky.social for an exciting side event at #COP30 to showcase how actors at every level can help deliver ambitious, implementable #NDCs. Reserve your spot: luma.com/qap23f61
Four headshots with descriptions of each person, reading out as follows: "Dr. Ryna Cui, Associate Director, Associate Research Professor Center for Global Sustainability"; "Dr. Manish Kumar Shrivastava Associate Director, Earth Science and Climate Change, The Energy and Resources Institute (TERI)"; "Ana Missirliu, Climate Policy Analyst, New Climate Institute"; "Michel den Elzen, Senior Researcher, PBL Netherlands Environmental Assessment Agency."
November 19, 2025 at 9:00 PM
ctrglobsust.bsky.social
Today at #COP30, CGS Director @natehultman.bsky.social, Associate Director @rynacui.bsky.social, & Asst. Director @jiehonglou.bsky.social joined our event with Peking University and @e3g.bsky.social, discussing how subnational climate action can be leveraged to achieve more ambitious national goals.
A group of nine people post for a group photo on an elevated platform with the text, "Align for Impact" on a backdrop behind them. A woman in a black skirt and a green stands on a slightly elevated stage while speaking into a microphone. A group of five people sit in a row while a woman in a black dress with white patterns holds a microphone and speaks while motioning with her hand.
November 19, 2025 at 8:03 PM
ctrglobsust.bsky.social
CGS Associate Director @rynacui.bsky.social speaking at a #COP30 press event to discuss how countries and key stakeholders can turn climate commitments into action and achieve more ambitious 2035 climate goals.
A woman sits at a podium with a microphone while speaking in front of a backdrop with the text, "COP30 Brazil Amazonia: Belem 2025". A panel of four people sit on an elevated stage with a background that reads: "United Nations Climate Change" and "COP30 Brasil Amazonia"
November 19, 2025 at 5:48 PM
ctrglobsust.bsky.social
As climate leaders gather to discuss climate futures at #COP30, how will new laws impact Canada’s climate progress?

@ctrglobsust.bsky.social’s report examines 5 climate-policy scenarios to analyze current progress, and ways to get on track to reach net-zero by 2050: go.umd.edu/Canada203...
A view of a crystal blue lake surrounded by forests and snow-capped mountains. Text on the left reads, "Achieving a High Ambition Pathway for Canada’s 2035 NDC and 2050 Net-Zero Emissions Targets; The Center for Global Sustainability’s new report explores how new policy priorities, including the Building Canada Act, could affect Canada’s climate future as the deadline for 2035 NDCs approaches. Through analyzing five climate-policy scenarios with varying levels of climate ambition, the report highlights that Canada's current policies will not be enough to put Canada on track to achieve its climate targets, including net-zero by 2050, and that more policy action is needed."
November 18, 2025 at 8:00 PM
ctrglobsust.bsky.social
Upcoming #COP30 side event 📣
Join CGS, @newclimate.bsky.social, and @nlenvironagency.bsky.social on Thursday, 11/20, at 11:30 AM BRT for a discussion on how national and subnational actors can drive forward global climate ambition.
Reserve your spot here: luma.com/qap23f61
A sign for COP30 on the right next to the text, "Official COP30 Side Event: All hands on deck: opportunities for global cooperation; Echoing the call for a Global Mutirão, join us to learn about opportunities for different actors – from businesses to cities to national governments – to build a path to a "globally determined contribution" reflecting national and subnational actions through ambitious and implementable NDCs." Four headshots with descriptions of each person, reading out as follows: "Dr. Ryna Cui, Associate Director, Associate Research Professor Center for Global Sustainability"; "Dr. Manish Kumar Shrivastava Associate Director, Earth Science and Climate Change, The Energy and Resources Institute (TERI)"; "Ana Missirliu, Climate Policy Analyst, New Climate Institute"; "Michel den Elzen, Senior Researcher, PBL Netherlands Environmental Assessment Agency."
November 18, 2025 at 4:30 PM
ctrglobsust.bsky.social
Yesterday at #COP30 during CGS's joint event with SFOC, Associate Director @rynacui.bsky.social presented CGS's joint analysis with KAIST on pathways to achieve the upper end of Korea's new #NDC through a set of concrete policy actions.
Learn more: go.umd.edu/RepublicofKorea2035Ambition
A woman in a blue patterned dress speaks into a hand-held microphone. Four people sit on a panel while a woman in a blue dress speaks into a hand-held microphone. They sit in front of a background that says "Align for Impact". A group of six people pose in front of a background with the text, "Align for Impact"
November 18, 2025 at 11:31 AM
ctrglobsust.bsky.social
CGS has been all over the map at #COP30🌍
In the first week of COP, CGS participated in over ten events, sharing key research on ways to accelerate climate action! Check out some of the highlights and stay tuned to see our final activities at #COP30: cgs.umd.edu/news/cgs-cop30
A woman in a blue dress, a man in tan professional clothing, and a woman in a black striped dress pose in front of a sign that says, "COP30".
November 17, 2025 at 5:27 PM
ctrglobsust.bsky.social
@ctrglobsust.bsky.social researchers shared important modeling work this week at #IAMC2025. To learn more about our recent modeling research, visit CGS's new Country Climate Ambition Website: http://country-ambit...
Seven people pose next to a sign for the 18th IAMC Annual Meeting.
November 14, 2025 at 7:00 PM
ctrglobsust.bsky.social
CGS researchers continue to share modeling research at #IAMC2025. Yesterday, CGS Associate Director
@rynacui.bsky.social discussed methane emission modeling, and Assistant Research Professor @kmkennedy6.bsky.social shared GHG emission modeling with consideration of local-level policies.
A woman in formal attire stands on a stage with a projected slideshow behind her as she addresses a crowd. A woman in formal attire stands on a stage with a projected slideshow behind her as she addresses a crowd.
November 14, 2025 at 5:37 PM
ctrglobsust.bsky.social
Next week, researchers from @ctrglobsust.bsky.social, @newclimate.bsky.social, and @nlenvironagency.bsky.social will host an exciting side event at #COP30 to showcase how actors at every level can contribute to ambitious and implementable #NDCs. Reserve your spot: luma.com/qap23f61
A sign for COP30 on the right next to the text, "Official COP30 Side Event: All hands on deck: opportunities for global cooperation; Echoing the call for a Global Mutirão, join us to learn about opportunities for different actors – from businesses to cities to national governments – to build a path to a "globally determined contribution" reflecting national and subnational actions through ambitious and implementable NDCs."
November 14, 2025 at 5:00 PM
ctrglobsust.bsky.social
Yesterday @ctrglobsust.bsky.social Assistant Director @jiehonglou.bsky.social shared research on how U.S. subnational actors can contribute to ambitious climate action in the transportation sector at #COP30.
A woman dressed in blue sits on on a white chair in front of a large screen presenting a figure labeled, "Enhanced subnational action in the United States and drive major progress towards 2035 goals". She is holding a microphone and addresses and audience (not in frame). A group of five people stand together in front of a screen and smile.
November 14, 2025 at 2:24 PM